Improvement in thrashing-machines



, `scription of grain.

1: a. UNITED- STATES PATENT OEEICE.

` q-ELEEIDGEettnYEH` OEHAMILTON, OHio, AssiGNoH rro owENs, LANE, f

DYER 85 GO., OF SAME PLACE.

W a iMpRovEMENT 1N THRAsHmG-MACH'INES- speeineetien ferming part of Letters Patent No. 35,648, dated June 17, 1862.

il To" all @korn/it maylcolwerm` Beit known that I, ELBRIDGE G. DYER, of Hamilton, Butler county, Ohio, have invented a new' and useful Improvement in Grain Thrashing and Separating Machines; and I4 do hereby declare the following to be a full,

clear, and exactdescription thereof, reference part of this specification-' My invention relates tothe provision of 'an auxiliarycleaning attachment at the discharging portion of a `grain thrasher and separator.

being had to thefannexed drawing, making In the use of the customary separating appliances of a thrashing-machine `there often occur conditions of grain `from which the orxdinary shoe is inadequate to discharge all the lighter refuse without atthe Sametime blow- 4 l `ing over andwasting-much of the good grain, i and hence alargeportion of machine-thrashed to provide an auxiliary winnowin g attachment applicable `to any thrashing-machine, which` 1 attachment may be momentarily available at i theoption of the operator, andin any de-f gree that the condition or character of the particular grain, being operated upon may render necessary, so as tolinsure the delivery of a `perfectly millablef article with every de- `.Ihedrawing isa perspective view of a thrashingmachine" provided with a" winnowingattachment having its outer wallremoved for the purpose of illustration.

A represents the rear portion of ay thrashing and separating machine. a `B is the fan,(the journahbearing being emitted.) e C is oneof twosimilar fan-mouths.

`D is the graindelivering spout.

5E is asuction wind tube or spout, which :may have a form approximating to that of an inverted U. `The receivinglimbm e ofthe spout E is open at bottom to allow the good cleaned grains (see red arrow l) to drop belowinto a `sack or other receptacle. The discharging-limb e' opens into a draft-chamber,

' F, from which`(wh`en the attachmeutis eme ployed) the fan is Vcompelled to draw its supply ofwind. V` Y In ,order that all the chess, cheat, and `other heavier portions of the light refuse may be caught in the limb e', the wind-passage is enlarged as it approaches the elbow e", and undergoes still further enlargement at the chamber F, resulting in a lull and-eddy at lthis point which leaves the said heavier refuse (see blue arrow 2) to be projected by its'momentum into the lower portion of the limb e', while the dust, chaff, white caps, and all other very light matters escape into the fan and are discharged at the shoe-tail. (See black arrow 3.) The light grains and seeds detained in the limb e are removed, when convenient, by means of a door, G, andare useful for chicken or hog feed.

' A registered openingi(see red lines H) in the outer wall of the draft-chamber, opposite the fan-mouth, enables the operator to graduate with the greatest nicety the action of the winnowing-spout bypermittingagreaterorless amount of direct draft into the fan. The opposite mouth of the fan is guarded by similar registers; I find by practical test that the fanmouth CneXt the draft-chamber Fis required n to exceed that on the other side by about an eighth of the latters diameter. 4

A register, I, within the tube affords an addi tional means of regulating the auxiliary winnower, and also enables the entire closing of the tube .when no auxiliaryvaction is required. When a large quantity of grain not needing auxiliary winnowing is to be operated on, the spout E may be unshipped by disengaging the hooks J. It is found that the wind in the spout EA acts separately-on each individual grain to a degree which is impracticable Within the limits ofthe shoewithout blowing "away grain and refuse together.'

whole being constructed, adapted, and regulated, substantially as set forth.

In testimony of which invention I hereunto set my hand.

ELBHIDGE G. DYEE.

Witnesses: Y

GEO. H. KNIGHT, i MARSHALL W. SAGE. 

